Regenerative gas-furnace



(No Model.)

5 Sheets-Sheet 2.

F. BANNER. REGENEBATIVE GAS FURNAGE.

Patented Sept. 6, 1892.

NVENTOR, l d 4% %MM/(M (No Model.) 5 Sheets-Sheet 3.

F. BANNER. REGENERATIVE GAS FURNAGE.

' No. 482,117. Patented Sept. 6, 1892.

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(No Model.) 5 Sheets-Sheet 4.-

P. BANNER. REGENERA'TIVE GAS FURNACE.

No. 482, 17 Patented Sept. 6, 1892.

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FIG-6 I I N V E NTO %W MIMI' Patented Sept. 6, 1892.

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F. BANNER. REGENERATIVE GAS FURNAGE.

(No Model.)

WITN ESES: f

Att'y.

UNITED STAT S PATENT erion,

FRIEDRICH BANNER, OF TARENTUM, ASSIGNOR OF ONE-HALF TO THE PITTS- BURGH PLATE GLASS COMPANY, OF CREIGHTON, PENNSYLVANIA.

REG ENERATIVE GAS-FURNACE.

SPECIFICATION formng part of Letters Patent No. 482,117, dated September 6, 1892.

Application filed February 27, 1892. Serial No. 4Z3,036. (No model.)

To all whom it may concern:

Be it known that I` FRIEDRICH DANNER, a citizen of the United States, resdin g at Tarentum, in the county of Allegheny and State of Pennsylvania, have invented or discovered a certain new and useful Improvement in Regenerative Gas-Furnaces, of which improvement the following is a specification.

The object of my invention is to provide effective and desirable means for regulating and controlling the quantity and distribution of heat in a regenerative furnace; and to this end it consists in an improved construction and conbination of air and gas fiues, valves, passages, and regenerator-chambers, as hereinatter fully set forth.

In the accompanying drawings, which illustrate the application of my invention in a glass-furnace, Figure 1 is a horizontal section on the line w w of Fig. 2; Fig. 2, a longitudinal vertical section on the line a: 0: of Fig. 1; Fig. 3, a vertical transverse section on the line y y of Fig. 1; Fig. l, a vertical cross-section on the line zz of Fig. 1; Fig. 5, a vertical transverse section on the line s s of Fig. 1, looking in the direction of the arrow a; Fig. G, a horizontal section on the line p p of Fig. 2; Fig. 7, a vertical section, on an enlarged scale, on the line t t of Figs. 1 and 6; Fig. 8, a vertical section on the line 'U o of Figs. 1 and 6, and Fig. 9 avertical section on the line r of Figs. 1 and 6.

Below the center of the furnace 1 there is located an arched passage 2, on each side of which are placed regenerator-chambers 3 4 5 and 3 3 4 and 5 these chambers being filled with Checker-work of refractory material in the usual manner. The air is heated in the chambers 3, 5, 3 and 5% and the gas in the chambers 4: and 4.

Below the hearth of the furnace air-cooling flues 25 extend in both directions from the arched passage 2 to the vertical fiues 26, which open above the furnace at each end.

The gas-supply pipe 6 leads from a suitable gas-producer or other source of gas-supply and is located directly over the stack-flue 7 between the gas-!ines 8 and S It is provided with a reversing-valve 9, by means of which either one of the flues 8 or S may be put in communication with the gas-supply pipe 6 and the other put in communication with the stack-flue 7, as clearly shown in Fig. 8.

Air is admitted through the openings 10, 10 11, and 11 into the passages of flues 12, 12% 13, and. 13 which communicate with the regenerator-chambers 3, 3 5, and 5, which are filled with checker-work. (Not shown in the drawings.) The openings through which air is admitted into the passages 12, 12 13, and 13 are made directly into said passages through the floor above, s'o that the air does not have to be drawn down through a closedpassage, as is usual in other constructions. The admission of air through the openings is 'regulated by means of lids or covers 14, 14,

15, and 15% which may be 'raised or lowered to open or close said openings.

A short distance below the openings 10, 10, 11, and ll and between the air-fiues 12, 12 13, and 13 are located valves 16, 16 17, and 17 which serve to control the openings 18, 18, 19., and 19'" between the air-flues and the stack-flue. These valves are so arranged that when they are in position to fully open communication between the air fiues and the stack-flue they close the openings through which air is admitted to the air-fiues, so that at the time either of the valves closes communication between an air-fine and the atmosphere it is immaterial whether the adjacent lid or cover is raised or lowered, and when the valves 16 16 17 17 are in position to close the communications between the airfiues and the stack-tlue they are moved away from the openings through which air is admitted to the air-flues, and the quantity of air adnitted is then regulated by the lids or covers 14 14: 15 15% As shown in the drawingsthe air and gas valves are in position to admit air and gas to the chambers 3% and 4 on the left of Figs. 1 and 2 and to permit the waste gases to pass from the furnace through the chambers 3, 4:, and 5 through the ues 13, 8, and 12 into the stack-fiue 7. With the gas-valve 9 in the position shown in Fig. 8, the gas passes down from the pipe 6 into the gas-fine 8 through the fiue 8 into the gas-chamber 4 and up through the gas-fine 20 into the furnace l. At the same time the valves 16 and 17 a close communication between the air-fiues 12 and 13 and the stack-fiue 7 and permit a free passage of air through the openings 10 and 11 into the passages 12 and l and through the chambers 3 and 5, from which, after be- IOO ing heated, it passes through the air-[ines 21 and 22 into the furnace 1,' where the hot air and gas are mingled and combustion takes place. The products of combustion then pass out at the other end of the furnace through the flues 20, 21, and 22 into the chambers 3, 4, and 5, where they heat the checker-work and pass through the passages 13, 8, and 12 into the stack-fiue 7.

The arrangement of the air ports or fiues 21 22 21 22 with relation to the gas'ports or flues 20 and 20 is such that when the air-admission ports 10 11 or 10 11' are opened, so as to admit equal quantities of air, the air issues with equal force and in equal quantities from the air-flues, and the combined air and gas in a state ot' combustion is equally distributed to all parts of the furnace; but if for any reason it is required to throw the fiame and hot gases to one side or the other the cover or valve which regulates the adnission of air to the air-fine on that side is partially or wholly closed, and the air which enters through the flue on the other side deflects the flame toward the side to be heated. For example, if the gas is entering the furnace through the port or fine 20 (see Fig. 6) and it is desired to give more heat to the side A than to the side B, it may be done by giving a reer admission of air through the open ing or port 10 or bycontracting the opening ll or by a proper regulation of both of these openings in such a manner that the air enters through the port or fiue 21 with greater force and in greater quantity than through the port 22. The consequence is that the mingled air and gas in a state of combustion are deflected to the side A of the furnace, and that side will receive more heat than the other, and the quantity of heat and the extent of the deflection of the gases will depend on the quantity of air admitted and the difference in the quantity admitted through the two fiues 21 and 22% In acorrespondingmannermore heat may be given to the side B than to the side A, and the heat on either side may be dininished by diminishing the supply of air admitted through the air-fine on the opposite side. In this nanner I am enabled to increase or decrease the heat in any part of the furnace at will and to regulate such increase or decrease to any degree desired.

While my invention is specially adapted for use with producer gas, it is equally applicable to use with natural gas, the action of the air from the fiues 21 22 or 21 22 being the same on the jet of natural gas'if it is placed in the same relative position as the fiue 20 or 20. Further, my invention is not limited to a construction in which a single gas-flue is employed at each end of the furnace, but is equally applicable to furnaces employing more than one set of gas-fiues and air-flues at each end.

The valves 16, 16% 17, and 17 which control the openings from the air-flues 12, 12,

13, and 13 to the stack-fiue and to the atmosphere, are arranged in pairs on opposite sides of the furnace and are operated by means of the levers 23, each pair of levers being connected to a rod 24, as shown in Figs. 7 and 9, so that longitudinal movement of the rod operates both valves simultaneously, and when one valve of a pair closes the communination between its air-flue and the stack-flue the other valve of the same pair opens communication between its air-fine and the stackflue and closes communication between the air-fine and the atmosphere. The valves,1evers, and connecting-rod 24: are so connected together that the valves are counte'balanced, and the lifting of one valve is assisted by the lowering of the other, so that it requires much less force to move them than would be required if the valves were not connected in any way.

I claim' as my invention and desire to secure by Letters Patent- 1. The improvement in the method of controlling the distribution of heat to a furnace, which consists in varying the supply of air to opposite sides of a jet of gas, and thereby causing the greater supply of air to defiect the flame toward the opposite side of the fur nace, substantially as set forth.

2. The combination, in a gas-furnace, of a gas-port opening therein, air-ports opening in rear of and at opposite sides of the gas-port, and valve mechanism for controlling the supply of air to each air-port, so as to cause the deflection of the hot gases toward either side of the furnace, substantially as set forth.

3. The combination, in a gas-furnace, of a gas-port opening therein, two air-ports in real' of the oppo'site sides of the gas-port, and valve mechanism for increasing or decreasing the supply of air to either or both airports, whereby the hot gases may be deflected toward the side of the furnace away from the port through which the greater supply of air enters, substantially as set forth.

4. The combination, in a regenerative gasfurnace, of a central regenerative gas-chamber, a fiue leading therefron to the furnace, two regenerative air-chambers, one located oI each side of the regenerative gas-chamber, and a flue from each of said air-chambers, leading to a port-openin g in rear of each side of the gas-fine, substantially as set forth.

5. A regenerative gas-furnace having two sets of regenerative chambers, one set at each end, consisting of a central gas-chamber and two air-chambers, one on each side of the gaschamber, with flues opening into opposite ends of the fnrnacc, substan tially as set forth.

In testimony whereof I have hereunto set my hand.

FRIEDRICH DANNER.

Witnesses:

J. SNOWDEN BELL, F. E. GAITHER. 

